In which Mike looks if he can verify results from various US army M16A1 test reports, namely on page 17 of this one: https://drive.google.com/file/d/1vjkGkmbg-uua9gqo46A0xcHxClJuz5SX/view?usp=sharing

There's also reference to the M16A2 from this report: https://drive.google.com/file/d/12qua8EgSYb2_auihY1tMUoKLvyBjX3uf/view?usp=sharing

So what happens when you look at the deflection of the mean point of impact with an M16A1 at 300m for hand-rested, bipod, hasty sling and magazine rested?